Richard, Junk the brown bottles, and use clear 16 oz coke bottles. CS is not light senstive. I store all of my developmental samples in the coke bottle. The five ball feet gives one an excellent way to check if the CS is falling out of suspension.
The clear bottle facillitates observing the Tyndall effect. A white light will work but it is not as effective as the laser pointer. With the laser pointer one can see differences in the size and appearance of the beam. Large particle CS has a laser trace that is loaded with sparklies. Work in subdued light. A strong beam is not necessarily an indication of hing ppm but could indicate large particles but smll than the one with sparklies. The HVAC boys say that their 10 ppm CS has a weak Tyndall due to its very small particle size. Robert -- The silver-list is a moderated forum for discussion of colloidal silver. To join or quit silver-list or silver-digest send an e-mail message to: [email protected] -or- [email protected] with the word subscribe or unsubscribe in the SUBJECT line. To post, address your message to: [email protected] List maintainer: Mike Devour <[email protected]>
